22453668 has 72 divisors (see below), whose sum is σ = 63292320. Its totient is φ = 6670080.

The previous prime is 22453667. The next prime is 22453693. The reversal of 22453668 is 86635422.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22453663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10663 + ... + 12593.

It is an arithmetic number, because the mean of its divisors is an integer number (879060).

Almost surely, 2^22453668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22453668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31646160).

22453668 is an abundant number, since it is smaller than the sum of its proper divisors (40838652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22453668 is a wasteful number, since it uses less digits than its factorization.

22453668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1972 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 22453668 is about 4738.5301518509. The cubic root of 22453668 is about 282.1168973636.

The spelling of 22453668 in words is "twenty-two million, four hundred fifty-three thousand, six hundred sixty-eight".